Tag: M.W=200-250

Wang, Hong-she published the artcileSynthesis of vanillin 1,2-propylene glycol acetal catalyzed by silica supported perchloric acid, Name: 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, the publication is Yingyong Huagong (2013), 42(2), 242-244, database is CAplus.

Vanillin 1,2-propylene glycol acetal was synthesized through the condensation of vanillin with 1,2-propylene glycol using silica supported perchloric acid (HClO₄/SiO₂) as a catalyst. The effects of the molar ratio of reactant, the amount of catalyst, reaction temperature and reaction time on the yield of product were discussed. The results showed that the optimized reaction conditions were as follows: the molar ratio of vanillin (0.1 mol) to 1,2-propylene glycol (0.16 mol) was 1:1.6, the amount of catalyst was 1.5 g, reaction temperature was 80°C, and the reaction time was 45 min. Under the optimum conditions mentioned above, the yield of vanillin 1,2-propylene glycol acetal reached more than 87.1%. HClO₄/SiO₂ as a heterogeneous catalyst had many advantages of high thermal stability, ease of preparation and reusability.

Yingyong Huagong published new progress about 68527-74-2. 68527-74-2 belongs to dioxole, auxiliary class Dioxolane,Benzene,Phenol,Ether, name is 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, and the molecular formula is C25H47NO8, Name: 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Jin, Lie published the artcileCatalytic synthesis of vanillin 1,2-propylene glycol acetal by phosphomolybdic acid, Computed Properties of 68527-74-2, the publication is Huaxue Gongchengshi (2010), 24(12), 59-62, database is CAplus.

Vanillin 1,2-propylene glycol acetal was synthesized from vanillin and 1,2-propylene glycol using H₃PO₃-MoO₃-xH₂O as the catalyst. Factors influencing the yield, such as the molar ratio of starting materials, time, catalyst species and amount, and different water entraining agents, were studied and the better reaction conditions were determined The factors influencing the synthesis were studied and the optimal reaction conditions were found as follows: a molar ratio of cinnamaldehyde/ethylene glycol = 1.0/1.3, a catalyst dosage of 0.3%, a cyclohexane amount of 15 mL and a reaction time of 4.5 h. The selectivity was above 98% and the product yield was 94.58%. The structure of vanillin 1,2-propylene glycol acetal was identified by means of IR and GC.

Huaxue Gongchengshi published new progress about 68527-74-2. 68527-74-2 belongs to dioxole, auxiliary class Dioxolane,Benzene,Phenol,Ether, name is 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, and the molecular formula is C11H14O4, Computed Properties of 68527-74-2.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Ding, Yuan-sheng published the artcileSynthesis of vanillin 1,2-propylene glycol acetal catalyzed by Keggin compound [(CH₂)₅NH₂]₄SiMo₁₂O₄₀, Safety of 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, the publication is Jilin Huagong Xueyuan Xuebao (2014), 31(5), 21-23, 31, database is CAplus.

Vanillin^1,2-propylene glycol acetal was synthesized from Vanillin and^1,2-propylene glycol using [(CH₂)₅NH₂]₄ SiMo₁₂O₄₀ as catalyst and benzene as water stripping agent. The effects of factors on yield of product, such as molar ratio of the reactant, catalyst dosage and reaction time were investigated. The exptl. results showed that [(CH₂)₅NH₂]₄ SiMo₁₂O₄₀ was catalyst with very good catalytic activity, and the catalyst was reused for 5 times. The preferential conditions were: based on 15.2g(0.1mol) of vanillin, the molar ratio of vanillin to^1,2-propylene glycol to n[(CH₂)₅NH₂]₄ SiMo₁₂O₄₀ 1 : 1.50 : 0.05; the amount of benzene as water stripping agent 20mL; and the reaction time 2.0 h. The yield could achieve above 88%.

Jilin Huagong Xueyuan Xuebao published new progress about 68527-74-2. 68527-74-2 belongs to dioxole, auxiliary class Dioxolane,Benzene,Phenol,Ether, name is 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, and the molecular formula is C11H14O4, Safety of 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Yu, Shuangjian published the artcileEffects of dynamic covalent bond multiplicity on the performance of vitrimeric elastomers, HPLC of Formula: 68527-74-2, the publication is Journal of Materials Chemistry A: Materials for Energy and Sustainability (2020), 8(39), 20503-20512, database is CAplus.

It is still a challenge to integrate multiple dynamic covalent bonds (DCBs) into one network, so the effects of DCB multiplicity on the performance of covalent adaptable networks (CANs) are still unclear. In this contribution, based on the versatility of vanillin chem., we realized the construction of CANs containing different DCB multiplicities, and thus the influences of DCB multiplicity on the vitrimeric performance of the networks are fairly investigated. It turns out that, with increasing DCB multiplicity, the relaxation time of the networks can be reduced significantly because the dynamic performance of the CANs with double or triple DCBs is determined by not only the activation energy but the synergistic effect of different DCBs. A plausible method was first proposed to quantify the synergistic effect of DCB multiplicity. We envisage that the disclosed findings will provide significant insight into the optimized design of CANs with tunable dynamic performance.

Journal of Materials Chemistry A: Materials for Energy and Sustainability published new progress about 68527-74-2. 68527-74-2 belongs to dioxole, auxiliary class Dioxolane,Benzene,Phenol,Ether, name is 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, and the molecular formula is C7H7BrN2O2, HPLC of Formula: 68527-74-2.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Lv, Shenghua published the artcileStructure and properties of copolymer tannage of vanillin and gallic acid with HRP initiation, Quality Control of 68527-74-2, the publication is Advanced Materials Research (Durnten-Zurich, Switzerland) (2012), 282-286, database is CAplus.

A copolymer of vanillin and gallic acid was synthesized using HRP/H₂O₂ as initiator. The chem. structure of the copolymer was characterized by means of FTIR, NMR and GPC. The copolymer was applied in making leather as a tanning agent and the shrinkage temperature (Ts) of tanned leather reached 82.5°C. The average thickness increment ratio (E) of re-tanned leather was 19.4%. It has also excellent assisting dyeing and soft leather fibers properties. The application leather has desired dyeing effect and excellent softness.

Advanced Materials Research (Durnten-Zurich, Switzerland) published new progress about 68527-74-2. 68527-74-2 belongs to dioxole, auxiliary class Dioxolane,Benzene,Phenol,Ether, name is 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, and the molecular formula is C11H14O4, Quality Control of 68527-74-2.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Shuqing, Wang published the artcileSynthesis of the vanillin 1,2 – propylene glycol acetal catalyzed by strong acid cation exchange resin, Category: dioxole, the publication is Jingxi Shiyou Huagong Jinzhan (2008), 9(7), 17-19, database is CAplus.

Vanillin 1,2-propylene glycol acetal was synthesized using 1,2-propylene glycol and vanillin as starting materials and strongly acidic cation exchange resin as catalyst. The effect of reaction temperature, reaction time, materials ratio, and the amounts of catalyst on the synthesis was studied, and the proper technol. conditions were given as follows: vanillin was 0.1mol, n(1,2-propanediol):n(vanillin) was 2.2; reaction temperature was 90-95°C, reaction time was 3.5 h, the amount of strongly acidic cation exchange resin was 1 g; and the water-carrying agent (cyclohexane) was 30 mL. The yield of vanillin 1,2-propylene glycol acetal can reach 84.86%. Purity of the vanillin 1,2-propylene glycol acetal is 98.5% and the catalysts can be used repeatedly.

Jingxi Shiyou Huagong Jinzhan published new progress about 68527-74-2. 68527-74-2 belongs to dioxole, auxiliary class Dioxolane,Benzene,Phenol,Ether, name is 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, and the molecular formula is C9H21NO3, Category: dioxole.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Wang, Hu published the artcileSynthesis of vanillin 1,2-propylene glycol acetal catalyzed by mesopore materials MCM-41 supported phosphotungstic acid hydrate, Application of 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, the publication is Fenzi Kexue Xuebao (2012), 28(5), 432-436, database is CAplus.

Vanillin 1,2-propylene glycol acetal was synthesized using 1,2-propylene glycol and vanillin as starting materials, mesopore materials MCM-41 supported phosphotungstic acid hydrate as catalyst and cyclohexane as water stripping agent. Effects of factors on yield of product, such as molar ratio of the reactant, reaction time, the amount of water stripping agent and catalyst dosage and supported contents, were investigated. Exptl. results showed that the preferential conditions were as follows: the molar ratio of vanillin to 1,2-propylene glycol was 1:2.4; supported content was 50%, the dosage of catalyst was 2.0% of the total weight of the reactants; the amount of cyclohexane as water stripping agent was 15 mL; the reaction time was 2.0 h. Under these conditions, the yield can achieve 92%.

Fenzi Kexue Xuebao published new progress about 68527-74-2. 68527-74-2 belongs to dioxole, auxiliary class Dioxolane,Benzene,Phenol,Ether, name is 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, and the molecular formula is C6H10O3, Application of 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Tu, Yuan-hong published the artcileSynthesis of vanillin 1,2-propylene glycol acetal catalyzed by silica supported ferric sulfate, SDS of cas: 68527-74-2, the publication is Riyong Huaxue Gongye (2008), 38(1), 39-41, database is CAplus.

Vanillin 1,2-propylene glycol acetal was synthesized using 1,2 -propylene glycol and vanillin as starting materials and silica supported ferric sulfate as catalyst. Effects of factors on yield of product, such as molar ratio of the reactants, reaction time, catalyst dosage and its stability, were investigated. Exptl. results showed that the preferential conditions were as follows: based on 0.1 mol of vanillin, the molar ratio of vanillin to 1,2 -propylene glycol was 1.0: 1.4; the dosage of catalyst was 2.5% of the total weight of the reactants; the amount of cyclohexane as water stripping agent was 12 mL; the reaction time was 3.0 h; under these conditions, the yield could achieve 86.0%.

Riyong Huaxue Gongye published new progress about 68527-74-2. 68527-74-2 belongs to dioxole, auxiliary class Dioxolane,Benzene,Phenol,Ether, name is 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, and the molecular formula is C6H10F3NO, SDS of cas: 68527-74-2.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Shuqing, Wang published the artcileSynthesis of the vanillin 1,2 – propylene glycol acetal catalyzed by strong acid cation exchange resin, Category: dioxole, the publication is Jingxi Shiyou Huagong Jinzhan (2008), 9(7), 17-19, database is CAplus.

Vanillin 1,2-propylene glycol acetal was synthesized using 1,2-propylene glycol and vanillin as starting materials and strongly acidic cation exchange resin as catalyst. The effect of reaction temperature, reaction time, materials ratio, and the amounts of catalyst on the synthesis was studied, and the proper technol. conditions were given as follows: vanillin was 0.1mol, n(1,2-propanediol):n(vanillin) was 2.2; reaction temperature was 90-95°C, reaction time was 3.5 h, the amount of strongly acidic cation exchange resin was 1 g; and the water-carrying agent (cyclohexane) was 30 mL. The yield of vanillin 1,2-propylene glycol acetal can reach 84.86%. Purity of the vanillin 1,2-propylene glycol acetal is 98.5% and the catalysts can be used repeatedly.

Jingxi Shiyou Huagong Jinzhan published new progress about 68527-74-2. 68527-74-2 belongs to dioxole, auxiliary class Dioxolane,Benzene,Phenol,Ether, name is 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, and the molecular formula is C9H21NO3, Category: dioxole.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Wang, Hu published the artcileSynthesis of vanillin 1,2-propylene glycol acetal catalyzed by mesopore materials MCM-41 supported phosphotungstic acid hydrate, Application of 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, the publication is Fenzi Kexue Xuebao (2012), 28(5), 432-436, database is CAplus.

Vanillin 1,2-propylene glycol acetal was synthesized using 1,2-propylene glycol and vanillin as starting materials, mesopore materials MCM-41 supported phosphotungstic acid hydrate as catalyst and cyclohexane as water stripping agent. Effects of factors on yield of product, such as molar ratio of the reactant, reaction time, the amount of water stripping agent and catalyst dosage and supported contents, were investigated. Exptl. results showed that the preferential conditions were as follows: the molar ratio of vanillin to 1,2-propylene glycol was 1:2.4; supported content was 50%, the dosage of catalyst was 2.0% of the total weight of the reactants; the amount of cyclohexane as water stripping agent was 15 mL; the reaction time was 2.0 h. Under these conditions, the yield can achieve 92%.

Fenzi Kexue Xuebao published new progress about 68527-74-2. 68527-74-2 belongs to dioxole, auxiliary class Dioxolane,Benzene,Phenol,Ether, name is 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol, and the molecular formula is C6H10O3, Application of 2-Methoxy-4-(4-methyl-1,3-dioxolan-2-yl)phenol.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem